Otherwise known as the underwear fashion report.
If you are wearing a short skirt, be very careful how you sit. If you don't believe me, sit down in front of a three-way mirror sometime, and try different postures.
Fishnet stockings are for evening wear. (So are velvet and satin garments.)
But the stockings with tiny bouquets, worn with a rather severe dress, that worked.
Under a clingy jersey dress, most of us need at least a slip, if not Spanx. Even if you're thin, underwear can create unsightly bulges.
Here, of course, we're back to the travel problems. Non-clingy, crisp fabrics can be far more flattering to many of us, but they tend to be heavy and prone to wrinkle. Jersey knits are lightweight and don't wrinkle. I remember girdles (not quite old enough to have worn one, but I recall my mother getting in and out of them) and I wouldn't wish one on any woman. And it's not so easy to find a suitable slip, actually. So I'm not sure what to advise . . . maybe just to be prepared for critical old bags like me, who are probably just jealous crones.
Safari suit and black pointed hat, here I come.